JSFiddle - React, Tailwind, and code Playground

by Santosh Thakur

HTML

<div>0</div>

JavaScript

var x = document.querySelector('div');
x.addEventListener("click", onFocus, true);

function onFocus() {
  if (x.style.background == '') {
    x.style.background = 'red';
  } else {
    x.style.background = '';
  }

}